3176C and 3196 Engines For Caterpillar Built Machines Caterpillar


Crankshaft Main Bearings - Remove

Usage:

140H 126

拆卸步骤

表 1
所需工具 
工具  零件号  零件描述  数量 
2P-5518  轴承工具 

开始:

  1. 拆下油底壳。 请参阅拆解和组装, "发动机油底壳 - 拆卸和安装"。


注意

保持所有零件清洁无杂质。

杂质会造成快速磨损和缩短部件寿命。




    图 1g01022767

  1. 拆下固定曲轴主轴承盖 (2) 的螺栓 (1)。 拆卸曲轴主轴承盖 (2)。

  2. 从曲轴主轴承盖 (2) 上拆下曲轴主轴承的下半部分。


    注意

    如果曲轴按错误的方向旋转,曲轴主轴承的锁键会在曲轴和缸体之间移动,这可能导致曲轴和缸体同时或其中之一损坏。




    图 2g01022781

  3. 利用下述步骤拆下曲轴主轴承 (3) 的上半部分:

    1. 转动曲轴,使工具 (A) 能够安装在曲轴轴颈中。 安装工具 (A)。

    2. 转动曲轴,以便拆下曲轴主轴承的上半部分。 为了先将凸舌取出,曲轴必须按正确的方向旋转。

    3. 检查曲轴主轴承的状况。 请参阅可复用零件操作指南, SEBF8009, "主轴承和连杆轴承"或参阅可复用零件操作指南, SEBV0544, "发动机轴承和曲轴"。

  4. 将止推片 (4) 从曲轴上拆下。

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